Superhuman

Superhuman is an AI-native productivity platform built around a fast email client (Mail), collaborative documents (Docs, formerly Coda), a proactive AI assistant (Superhuman Go), the Grammarly writing assistant, Calendar, and Databases. Following the combination of Superhuman, Grammarly, and Coda, the company operates a developer platform: first-party Model Context Protocol (MCP) servers for Mail and Docs that let AI clients such as Claude, ChatGPT, and Cursor act on a user's mail and document context; a Superhuman Agents SDK and Docs SDK for extending the surface; and REST APIs for Docs, Docs Admin, Grammarly, and audit logs. Security posture is published through a SafeBase trust center with SOC 2 Type 2 and ISO/IEC 27001/27017/27018/27701 attestations, and service health is tracked on a public Atlassian status page.

Superhuman is profiled on the APIs.io network. Tagged areas include Company, Email, Productivity, Artificial Intelligence, and Email Client.

Superhuman’s developer surface includes documentation, API reference, engineering blog, support, pricing, signup flow, and 13 more developer resources.

🌐 Visit website 📡 Profile data on GitHub

32.6/100 thin ▬ flat Agent 9/100 agent aware Front door AI 5/6 prominent Heartbeat 100/100 alive saas Full breakdown ↓
scored 2026-11-06 · rubric v0.27.0 · Show this score on your site →

AccessFreemium

0 APIs 1 MCP Servers

Company Email Productivity Artificial Intelligence Email Client Documents MCP Agents Communications

Kin Score

Kin Score How this is scored →
scored 2026-11-06 · rubric v0.27.0

Composite quality — 32.6/100 · thin

Contract Quality 0.0 / 21

Developer Ergonomics 5.7 / 17

Access Clarity 15.7 / 17

Operational Transparency 1.7 / 11

Contract Governance 0.0 / 10

Discoverability 4.4 / 9

Regulatory Posture 2.6 / 15

Agent readiness — 9/100 · agent aware

Machine-Readable Contract 0 / 18

Agentic Access Contract 0 / 10

Documented Reversibility 0 / 6

MCP Server 12 / 12

Machine-Readable Auth 0 / 10

Idempotency 0 / 9

Stable Error Semantics 0 / 8

Request/Response Examples 0 / 7

Rate-Limit Signaling 0 / 7

Typed Event Surface 0 / 6

Agent Skills 0 / 5

Well-Known Catalog 0 / 4

Consent & Bot Identity 0 / 3

A2A Agent Card 0 / 8

Dry-Run / Simulate Mode 0 / 4

Delegated User Identity 0 / 6

Protected Resource Metadata 0 / 5

Registration Without a Human 0 / 6

Agentic Commerce Well-Known Document 0 / 5

Pagination 5 / 5

Distinct Operations 3 / 3

MCP Tool Quality 6 / 6

Regulatory Posture applies to this provider. Its tags matched the Horizontal (data, software, accessibility, platform) regime, so Regulatory Posture carries 15 points of the composite. If this regime is wrong for your business, say so on your provider repo — the applicability map is public and we will correct it.

Create-or-Update Ergonomics could not be measured. We hold no machine-readable contract for this provider to read, so there is nothing to measure a write surface against. Excluded rather than scored zero: never-measured and measured-empty are different facts. Publishing an OpenAPI is what makes this facet — and several others — scorable at all.

The six quality facets above are damped to 85 points between them, because the conditional facet above carries the other 15. That is why each facet's contribution is shown against a damped maximum: raising a quality facet moves the composite by 85% of its nominal weight, not 100%. The full arithmetic is at apis.io/rating/.

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Agent readiness — checks not met, largest first (exact, from this profile):

Machine-Readable Contract +18 pts — api_specs includes an OpenAPI document
Agentic Access Contract +10 pts — agentic_access artifact present (x-agentic-access), graded by author
Machine-Readable Auth +10 pts — a served openid-configuration/oauth-authorization-server carrying `issuer` (served), else the securitySchemes class in the provider OpenAPIs — bound (mutualTLS, DPoP, Signature) > negotiable (oauth2 authorizationCode/clientCredentials, openIdConnect) > bearer (http bearer, apiKey)
Idempotency +9 pts — OpenAPI mutating operations declare an idempotency key — a header, a request-body property, or a named de-duplication token whose own description says so (verified); else common[].type matches /idempoten/i (documented)
Stable Error Semantics +8 pts — OpenAPI $refs a shared error schema across 4xx/5xx responses (verified), else common[].type includes ErrorCatalog / ErrorCodes / DeclineCodes
A2A Agent Card +8 pts — a2a/-a2a.yml manifest, graded on conformance.grade against A2A 1.0.0

12 more unmet checks in the Agent Readiness table above.

Kin Score — facets with the most composite points still available (weight × headroom):

Contract Quality scores 0.0 — up to +25.0 composite points
Developer Ergonomics scores 33.3 — up to +13.3 composite points
Contract Governance scores 0.0 — up to +12.0 composite points

Each check links to what satisfies it. Publish the artifact, or tell us where it already lives, and the score moves on the next scoring run.

Improve this rating by publishing the missing artifacts — every area above can be raised, and the full rubric is at apis.io/rating/. Every facet and dimension name above is a link: it opens that measurement's own page — what it means, the exact checks that feed it, how the whole catalog distributes on it, and the providers at the top of it. This rating is computed from the provider profile at artifacts.apis.io/superhuman/apis.yml: open an issue on github.com/api-evangelist/superhuman to ask a question or point us at an artifact you publish. Submit an artifact on GitHub — free → Manage your own listing — the Influence plan, $499/mo →

Markets this provider is in provisional

The Kin Score Market layer reads a provider inside its market: its position, and how deep its integrations go. Depth is only comparable within a position. Provisional and unweighted: not part of the Kin Score or agent readiness.

Market	Position	Depth	Registered MCP server	Declares compatibility
Workplace Collaboration App Marketplaces	builds-on	40.5	-	1
Zoom App Marketplace and Partner Ecosystem (builders and partners on Zoom)	builds-on	40.5	-	1
Miro Marketplace (apps and integrations built on Miro's whiteboard platform)	builds-on	40.5	-	1

Registered MCP server and declares compatibility are report only — not weighted. Undeclared means we found nothing we can read, so there is no number: we never infer integrations.

Standards implemented 1

Standards this provider implements or carries. De facto ones are profiled and measured by the API Commons; formal ones come from the standards directory and are linked by the provider's own tags. The evidence column says how each claim was established — not that it was made.

Model Context Protocol (MCP)

measured — observed by APIs.io (verified)

MCP Servers 1

Model Context Protocol servers that expose these APIs to AI agents.

Superhuman Mail & Docs MCP servers

Remote MCP server at help.superhuman.com.

MCP SERVER

Superhuman API pricing

Prices published by Superhuman, read 2026-10-07 from superhuman.com/plans.

Plan	Price
Free	$0 Includes: Chat with AI in every application and tab; writing in 20+ languages; collaborative docs
Pro	$12 per member/ month, billed annually Includes: Everything in Free, plus unlimited paragraph rewrites and translations, 30-day version history
Business	$33 per member/ month, billed annually Includes: Everything in Pro, plus Mail, CRM integrations, unlimited automations
Enterprise	Custom Includes: Everything in Business, plus SAML SSO, advanced security, dedicated support

Plan details, limits and sources →

Pricing Plans 1

Published pricing tiers and plan structures.

Superhuman Plans Pricing

4 plans

PLANS

Security Posture 2

Authentication, domain security, vulnerability disclosure, and trust-center signals.

Superhuman Domain Security

TLSv1.3 · HSTS · DMARC

SECURITY

Superhuman Trust Center

SOC 2, ISO 27001, ISO 27017, ISO 27018

SECURITY

Resources

Get Started 2

Portal, sign-up, and the first successful call

DeveloperPortal

DeveloperPortal

SignUp

SignUp

Documentation 2

Reference material describing how the API behaves

Documentation

Documentation

APIReference

APIReference

Agent Surfaces 1

MCP servers, agent skills, and machine-readable catalogs

MCPServer

MCPServer

Design & Contract 1

Pagination, idempotency, versioning, errors, and events

Lifecycle

Lifecycle

Access & Security 3

Authentication, authorization, and security posture

TrustCenter

TrustCenter

Compliance

Compliance

DomainSecurity

DomainSecurity

Operate 2

Status, limits, changes, and where to get help

StatusPage

StatusPage

Support

Support

Commercial 4

Pricing, plans, and the legal terms of use

Plans

Pricing

TermsOfService

PrivacyPolicy

Company 4

The organization behind the API

BlogRSS

Website

Blog

Partners

Source (apis.yml)

aid: superhuman
deliveryModel:
  model: saas
  open_source: false
  commercial: true
  callable_host: false
  label: Hosted service · you call their endpoint
  confidence: medium
  source:
  - pricing
  generated: '2026-08-28'
  method: derived
accessModel:
  pricing: freemium
  onboarding: unknown
  trial: false
  try_now: false
  public: false
  label: Freemium
  confidence: low
  source:
  - plans
  - security
  generated: '2026-11-06'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/superhuman.png
name: Superhuman
description: 'Superhuman is an AI-native productivity platform built around a fast email client (Mail), collaborative documents
  (Docs, formerly Coda), a proactive AI assistant (Superhuman Go), the Grammarly writing assistant, Calendar, and Databases.
  Following the combination of Superhuman, Grammarly, and Coda, the company operates a developer platform: first-party Model
  Context Protocol (MCP) servers for Mail and Docs that let AI clients such as Claude, ChatGPT, and Cursor act on a user''s
  mail and document context; a Superhuman Agents SDK and Docs SDK for extending the surface; and REST APIs for Docs, Docs
  Admin, Grammarly, and audit logs. Security posture is published through a SafeBase trust center with SOC 2 Type 2 and ISO/IEC
  27001/27017/27018/27701 attestations, and service health is tracked on a public Atlassian status page.'
url: https://raw.githubusercontent.com/api-evangelist/superhuman/refs/heads/main/apis.yml
x-type: company
x-source: vc-portfolio
x-backed-by:
- 500-global
- a16z
- ivp
x-tier: stub
x-tier-reason: portfolio-lead
specificationVersion: '0.23'
created: '2026-07-17'
modified: '2026-10-06'
tags:
- Company
- Email
- Productivity
- Artificial Intelligence
- Email Client
- Documents
- MCP
- Agents
- Communications
tags_raw:
- Company
- Email
- Productivity
- Artificial Intelligence
- Email Client
- Documents
- Model Context Protocol
- Agents
- Communication
apis: []
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com
- FN: APIs.json
  email: info@apis.io
common:
- type: Plans
  url: plans/superhuman-plans-pricing.yml
- url: https://blog.superhuman.com/rss/
  type: BlogRSS
- type: Website
  url: https://superhuman.com
- type: DeveloperPortal
  url: https://superhuman.com/developers
- type: Documentation
  url: https://superhuman.com/developers
- type: APIReference
  url: https://coda.io/developers/apis/v1
- type: MCPServer
  name: Superhuman Mail & Docs MCP servers
  url: mcp/superhuman-mcp.yml
- type: StatusPage
  url: https://status.superhuman.com
- type: Lifecycle
  url: lifecycle/superhuman-lifecycle.yml
- type: TrustCenter
  url: security/superhuman-trust-center.yml
- type: Compliance
  url: https://trust.superhuman.com
- type: DomainSecurity
  url: security/superhuman-domain-security.yml
- type: Blog
  url: https://blog.superhuman.com
- type: Support
  url: https://help.superhuman.com
- type: Pricing
  url: https://superhuman.com/plans
- type: SignUp
  url: https://superhuman.com
- type: TermsOfService
  url: https://superhuman.com/legal/terms
- type: PrivacyPolicy
  url: https://superhuman.com/legal/privacy-policy
- type: Partners
  url: https://superhuman.com/partners
x-enrichment:
  date: '2026-07-21'
  status: enriched
  artifacts_added: 4
  pass: local-v1

Superhuman API — frequently asked questions

How much does the Superhuman API cost?

Superhuman publishes its prices; its Free plan is $0 as of 2026-10-07. APIs.io lists 4 pricing plans for Superhuman, with each plan's price, limits and inclusions under Pricing on this page.

Does Superhuman have an MCP server?

Yes. APIs.io lists 1 MCP server for Superhuman: Remote MCP server at help.superhuman.com.

Is the Superhuman API ready for AI agents?

Superhuman has a Kin Score of 32.6 out of 100 (thin) and an Agent Readiness score of 8.6 (agent-aware), scored by API Evangelist on 2026-11-06.

Work with this as data

Every provider here is available over the APIs.io API and to AI agents over MCP.

MCP server

One button, every client — Claude, Cursor, VS Code and the rest.

https://apis.io/mcp

Tools for providers

9 MCP tools reach this

find_providersBrowse and filter every provider in the catalog.
get_provider_artifactsEvery artifact this provider publishes, grouped by type.
get_provider_operationsEvery operation across all of their OpenAPIs — one call instead of parsing every spec.
get_provider_toolsEvery MCP tool they ship, with the operation each wraps.
get_provider_evidenceHow each part of their score was established. Free — the basis for a claim should not sit behind it.
get_provider_ratingPRO — composite, band, trend and facet scores.
apis_io_searchSTART HERE — APIs, providers and tags for one query, each with its total.
resolveTurn a domain, URL or GitHub org into the provider it belongs to.
find_cohortsEvery scored population of providers in the catalog.

All 92 tools →

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Every operation they expose

curl "https://apis.io/api/v1/providers/superhuman/operations?limit=25"

How their score was established

curl "https://apis.io/api/v1/providers/superhuman/evidence"

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